<template>
  <div class="app-container">
    <el-table
      :data="list"
      style="width: 100%"
      row-key="id"
      border
      lazy
      :load="load"
      :tree-props="{ children: 'children', hasChildren: 'hasChildren' }"
    >
      <el-table-column prop="name" label="名称" width="180"></el-table-column>
      <el-table-column prop="dictCode" label="编码" width="180">
      </el-table-column>
      <el-table-column prop="value" label="值"></el-table-column>
      <el-table-column prop="createTime" label="创建时间"></el-table-column>
    </el-table>
    <div class="el-toolbar">
      <div class="el-toolbar-body" style="justify-content: flex-start;">
        <el-button type="text" @click="exportData"><i class="fa fa-plus"/> 导出</el-button>
        <el-button type="text" @click="importData"><i class="fa fa-plus"/> 导入</el-button>
      </div>
    </div>
    <el-dialog title="导入" :visible.sync="dialogImportVisible" width="480px">
      <el-form label-position="right" label-width="170px">
        <el-form-item label="文件">
          <el-upload
            :multiple="false"
            :on-success="onUploadSuccess"
            :action="'http://localhost:9001/admin/cmn/upload'"
            class="upload-demo">
            <el-button size="small" type="primary">点击上传</el-button>
            <div slot="tip" class="el-upload__tip">只能上传xls文件，且不超过500kb</div>
          </el-upload>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogImportVisible = false">取消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
  import dict from "@/api/dict.js";

  export default {
    data() {
      return {
        list: [],
        dialogImportVisible: false
      };
    },
    methods: {
      onUploadSuccess() {
        // 上传成功
        this.$message.success("成功上传!")
        // 重新查一次数据
        this.fetchDictData()
        // 关闭对话框
        this.dialogImportVisible = false
      },
      importData() {
        this.dialogImportVisible = true
      },
      exportData() {
        // 发送excel下载的请求给后端
        window.open('http://localhost:9001/admin/cmn/download')
      },
      load(row, treeNode, resolve) {
        // row: 表示当前行的数据
        // resolve: 是一个功能函数，可以把当前行的子元素挂载到当前元素下
        // 获取当前行的id
        let pid = row.id;
        dict.getDictList(pid).then(resp => {
          resolve(resp.data.items);
        });
      },
      fetchDictData() {
        dict.getDictList(1).then(resp => {
          this.list = resp.data.items;
        });
      }
    },
    created() {
      this.fetchDictData()
    },
    mounted() {
    }
  };
</script>

<style></style>
